Buggy code:
public void setSpawn ( boolean spawn ) { } public static synchronized Vector getProcEnvironment ( ) { } private static String [ ] getProcEnvCommand ( ) { } public static String toString ( ByteArrayOutputStream bos ) { } public Execute ( ) { } public Execute ( ExecuteStreamHandler streamHandler ) { } public Execute ( ExecuteStreamHandler streamHandler , ExecuteWatchdog watchdog ) { } public void setStreamHandler ( ExecuteStreamHandler streamHandler ) { } public String [ ] getCommandline ( ) { } public void setCommandline ( String [ ] commandline ) { } public void setNewenvironment ( boolean newenv ) { } public String [ ] getEnvironment ( ) { } public void setEnvironment ( String [ ] env ) { } public void setWorkingDirectory ( File wd ) { } public File getWorkingDirectory ( ) { } public void setAntRun ( Project project ) throws BuildException { } public void setVMLauncher ( boolean useVMLauncher ) { } public static Process launch ( Project project , String [ ] command , String [ ] env , File dir , boolean useVM ) throws IOException { } public int execute ( ) throws IOException { } public void spawn ( ) throws IOException { } protected void waitFor ( Process process ) { } protected void setExitValue ( int value ) { } public int getExitValue ( ) { } public static boolean isFailure ( int exitValue ) { } public boolean killedProcess ( ) { } private String [ ] patchEnvironment ( ) { } public static void runCommand ( Task task , String [ ] cmdline ) throws BuildException { } public static void closeStreams ( Process process ) { } private static Vector addVMSLogicals ( Vector environment , BufferedReader in ) throws IOException { } private static class CommandLauncher { public Process exec ( Project project , String [ ] cmd , String [ ] env ) throws IOException { } public Process exec ( Project project , String [ ] cmd , String [ ] env , File workingDir ) throws IOException { } } private static class Java13CommandLauncher extends Execute . CommandLauncher { private Method myExecWithCWD ; public Java13CommandLauncher ( ) throws NoSuchMethodException { } public Process exec ( Project project , String [ ] cmd , String [ ] env , File workingDir ) throws IOException { } } private static class CommandLauncherProxy extends Execute . CommandLauncher { private Execute . CommandLauncher myLauncher ; CommandLauncherProxy ( Execute . CommandLauncher launcher ) { } public Process exec ( Project project , String [ ] cmd , String [ ] env ) throws IOException { } } private static class OS2CommandLauncher extends Execute . CommandLauncherProxy { OS2CommandLauncher ( Execute . CommandLauncher launcher ) { } public Process exec ( Project project , String [ ] cmd , String [ ] env , File workingDir ) throws IOException { } } private static class WinNTCommandLauncher extends Execute . CommandLauncherProxy { WinNTCommandLauncher ( Execute . CommandLauncher launcher ) { } public Process exec ( Project project , String [ ] cmd , String [ ] env , File workingDir ) throws IOException { } } private static class MacCommandLauncher extends Execute . CommandLauncherProxy { MacCommandLauncher ( Execute . CommandLauncher launcher ) { } public Process exec ( Project project , String [ ] cmd , String [ ] env , File workingDir ) throws IOException { } } private static class ScriptCommandLauncher extends Execute . CommandLauncherProxy { ScriptCommandLauncher ( String script , Execute . CommandLauncher launcher ) { } public Process exec ( Project project , String [ ] cmd , String [ ] env , File workingDir ) throws IOException { } private String myScript ; } private static class PerlScriptCommandLauncher extends Execute . CommandLauncherProxy { private String myScript ; PerlScriptCommandLauncher ( String script , Execute . CommandLauncher launcher ) { } public Process exec ( Project project , String [ ] cmd , String [ ] env , File workingDir ) throws IOException { } } private static class VmsCommandLauncher extends Execute . Java13CommandLauncher { public VmsCommandLauncher ( ) throws NoSuchMethodException { } public Process exec ( Project project , String [ ] cmd , String [ ] env ) throws IOException { } public Process exec ( Project project , String [ ] cmd , String [ ] env , File workingDir ) throws IOException { } private File createCommandFile ( String [ ] cmd , String [ ] env ) throws IOException { File script = Execute . FILE_UTILS . createTempFile ( "ANT" , ".COM" , null ) ; script . deleteOnExit ( ) ; PrintWriter out = null ; try { out = new PrintWriter ( new FileWriter ( script ) ) ; if ( env != null ) { int eqIndex ; <START_BUG> for ( int i = 1 ; i < ( env . length ) ; i ++ ) { <END_BUG> eqIndex = env [ i ] . indexOf ( '=' ) ; if ( eqIndex != ( - 1 ) ) { out . print ( "$<seq2seq4repair_space>DEFINE//NOLOG<seq2seq4repair_space>" ) ; out . print ( env [ i ] . substring ( 0 , eqIndex ) ) ; out . print ( "<seq2seq4repair_space>\"" ) ; out . print ( env [ i ] . substring ( ( eqIndex + 1 ) ) ) ; out . println ( '\"' ) ; } } } out . print ( ( "$<seq2seq4repair_space>" + ( cmd [ 0 ] ) ) ) ; for ( int i = 1 ; i < ( cmd . length ) ; i ++ ) { out . println ( "<seq2seq4repair_space>-" ) ; out . print ( cmd [ i ] ) ; } } finally { if ( out != null ) { out . close ( ) ; } } return script ; } private void deleteAfter ( final File f , final Process p ) { } } }

Fix:
for ( int i = 0 ; i < ( env . length ) ; i ++ ) {